Beam 1.0 501B A23B 49.4/100Rank 18/47

STEALTHMARK · HEAD TO HEAD
All comparisons ↗Beam 1.0 501B A23B leads Qwen3.5-9B by 21.4 points on StealthMark, 31.9 to 10.5. It leads on 8 of 9 benchmarks, including both games, and Qwen3.5-9B on 1. Beam 1.0 501B A23B scores higher on Newton's Mirror, with its largest category advantage in state at 600 ms.
See the difference ↘On every task, result quality and reasoning tokens are each compared with all measured models and weighed equally. Each dot is one model.
BENCHMARK BY BENCHMARK
DATASHEET
Beam 1.0 501B A23B scores higher on StealthMark and runs 6× faster in our speed test. Qwen3.5-9B is 4× cheaper per output token. Both take about 1M tokens of context.
Full datasheets, every price and sourceBeam 1.0 501B A23B ↗Qwen3.5-9B ↗
Anticipating threats and planning ahead. Collect coins while avoiding ghosts. Ghosts move before the player each turn, and collisions cost a life. 3 levels in sequence, up to 66 turns in total. Earlier moves and outcomes carry forward, testing learning across levels.


Cooperative planning and learning from experience. Coordinate two robots to push numbered cores onto matching sockets. Pressure plates hold doors open; moving either robot uses one turn. 5 levels in sequence, up to 152 turns in total. Earlier moves and outcomes carry forward, testing learning across levels.


Physics, perspective and recursive reflections, tested together. Explore the test ↗


Beam 1.0 501B A23B
Central object placement is fairly close, but the defining mirrored-room structure is missing. The paint colors suggest the required contact order without establishing their different interaction histories. The faint floor oval does not demonstrate valid reflection geometry, so it earns no reflection credit. Rounded volume and glossy paint provide limited material credit despite weak metallic finishes and oversized paint bodies.
Qwen3.5-9B
Horizontal centering and a separate airborne black blob are visible. Cyan's recent contact and crimson's forward transport are insufficiently demonstrated, while sphere support remains obscured. The enlarged, lowered sphere substantially changes the composition. The wall and floor sphere images, recursive room structure and curved emitter mappings are almost entirely missing.
| Category | Beam 1.0 501B A23B | Qwen3.5-9B |
|---|---|---|
| State at 600 ms | 20.5/25 | 3.0/25 |
| Camera and placement | 11.5/15 | 4.5/15 |
| Reflections | 2.0/120 | 2.0/120 |
| Materials and scale | 3.0/10 | 3.0/10 |
| Floor-damage reward | 0.0/10 | 0.0/10 |
A spinning metal sphere and paint in a mirrored room test physical reasoning, perspective and consistency across repeated reflections.
Visual construction and creative interpretation.


Beam 1.0 501B A23B
An appealing expression and warm palette support a coherent simple cartoon. The central polishing joke is not legible: the cloth is unresolved and the nose sits away from the fan. Pointed radial plates, uncertain limb attachments and weak ground contact limit construction, while restrained surface detail limits material richness.
Qwen3.5-9B
Glowing teal spheres and a harmonious palette provide visible strengths, but the central character remains seriously unresolved. A large gap separates head and torso, limbs cannot be traced, and scattered garment shapes fail to establish the ornate costume. The foreground mound replaces the tall enclosing arch. Clean primitive edges do not repair these construction failures.
| Category | Beam 1.0 501B A23B | Qwen3.5-9B |
|---|---|---|
| Task & likeness | 4.0/10 | 3.0/10 |
| Anatomy & construction | 3.5/10 | 2.0/10 |
| Space & placement | 5.5/10 | 3.0/10 |
| Light & reflections | 5.5/10 | 3.5/10 |
| Purposeful detail | 4.5/10 | 2.0/10 |
| Artistry & character | 4.0/10 | 2.0/10 |
| Materials & effects | 4.5/10 | 4.0/10 |
| Visual integrity | 7.0/10 | 3.0/10 |
Beam 1.0 501B A23B
A golden pangolin polishes its oversized amber tail while its nose smudges the same scale. The scene tests expressive anatomy, physical contact and contrasting translucent, polished and soft materials.
Qwen3.5-9B
A floating capybara in ornate robes tests character anatomy, layered fabric and the placement of surrounding luminous forms.
Precise visual recall and portrait reconstruction.


Beam 1.0 501B A23B
The candidate shows a faint warm oval against an almost entirely black field. Minimal placement and smooth tonal variation are visible, but the portrait, anatomy, crossed hands and landscape remain unreadable. The saved comparisons provide no specific evidence supporting a change to the baseline categories.
Qwen3.5-9B
A centered dark oval with sparse facial marks forms a simple graphic face, but scarcely replicates the Mona Lisa. The portrait's body, crossed hands, clothing and landscape are missing, while angular facial construction and flat tones lose its likeness, volume and subtle expression.
| Category | Beam 1.0 501B A23B | Qwen3.5-9B |
|---|---|---|
| Task & likeness | 0.0/10 | 0.0/10 |
| Anatomy & construction | 0.0/10 | 0.0/10 |
| Space & placement | 0.0/10 | 0.0/10 |
| Light & reflections | 0.5/10 | 0.0/10 |
| Purposeful detail | 0.0/10 | 0.0/10 |
| Artistry & character | 0.0/10 | 0.5/10 |
| Materials & effects | 0.0/10 | 0.0/10 |
| Visual integrity | 0.0/10 | 0.5/10 |
An SVG interpretation of the Mona Lisa tests facial likeness, anatomy and the composition of a familiar portrait.
Creativity, perspective and visual beauty.


Beam 1.0 501B A23B
A coherent, cheerful beach illustration fulfills the main subjects with clean shapes and a strong sunset focal point. Its basic geometric construction, ambiguous animal anatomy, shallow depth and schematic lighting limit its accomplishment. Decorative details provide interest without developing intricate forms or convincing physical surfaces.
Qwen3.5-9B
The beach is recognizable, and sweeping shoreline curves provide basic rhythm. Wildlife and playful activity remain poorly resolved, with ambiguous body construction and object contact. The sun glows without corresponding reflections or surface lighting. Fragmented subjects and an unintegrated rectangular panel substantially weaken composition and finish.
| Category | Beam 1.0 501B A23B | Qwen3.5-9B |
|---|---|---|
| Task & likeness | 7.0/10 | 1.5/10 |
| Anatomy & construction | 5.0/10 | 0.5/10 |
| Space & placement | 6.0/10 | 1.5/10 |
| Light & reflections | 5.0/10 | 1.0/10 |
| Purposeful detail | 5.5/10 | 2.5/10 |
| Artistry & character | 4.0/10 | 1.5/10 |
| Materials & effects | 5.0/10 | 0.5/10 |
| Visual integrity | 5.0/10 | 1.5/10 |
A busy shoreline at sunset tests scene composition, animal forms and the relationship between light and water reflections.
Physical reasoning, light and visual reconstruction.


Beam 1.0 501B A23B
This benchmark has not been assessed yet.
Qwen3.5-9B
This benchmark has not been assessed yet.
A plank, computer mouse and blueberry in a steel room test physical stability, spatial relationships, materials and lighting.
Scene composition and interacting subjects.


Beam 1.0 501B A23B
A cheerful, readable illustration with recognizable animals, expressive faces and useful accessories. Simple rounded construction limits complexity, while ambiguous steering attachments and weak hull-to-water contact reduce physical coherence. Lighting and surface effects establish the setting without convincing environmental interaction.
Qwen3.5-9B
Bright colors, clean individual shapes and basic animal cues make the scene partly recognizable. Back seating, body continuity, steering and jet ski construction remain unresolved. Background gradients and wave rhythm provide some finish, but substantial anatomical, spatial and interaction weaknesses dominate.
| Category | Beam 1.0 501B A23B | Qwen3.5-9B |
|---|---|---|
| Task & likeness | 5.0/10 | 2.5/10 |
| Anatomy & construction | 3.5/10 | 1.0/10 |
| Space & placement | 5.5/10 | 2.0/10 |
| Light & reflections | 4.0/10 | 1.0/10 |
| Purposeful detail | 6.5/10 | 1.5/10 |
| Artistry & character | 3.5/10 | 1.0/10 |
| Materials & effects | 5.0/10 | 1.0/10 |
| Visual integrity | 6.5/10 | 2.5/10 |
A jet-ski scene pairs a canine driver with a raccoon passenger. It tests the placement and contact of interacting subjects, along with vehicle construction.
Subject construction and spatial relationships.


Beam 1.0 501B A23B
A cheerful, clearly readable pelican-and-bicycle illustration with clean contours and balanced composition. Simple geometric construction limits artistic complexity, while ambiguous neck and steering overlaps, merged pedal contacts and an incomplete drivetrain weaken physical coherence.
Qwen3.5-9B
The oversized bill and orderly spoked wheels make the subject partly recognizable. Clean contours and strong color contrast provide graphic clarity, but unresolved appendages, steering, drivetrain and support dominate the construction. Sparse shading and detail further limit the illustration.
| Category | Beam 1.0 501B A23B | Qwen3.5-9B |
|---|---|---|
| Task & likeness | 5.5/10 | 4.0/10 |
| Anatomy & construction | 4.5/10 | 1.5/10 |
| Space & placement | 5.0/10 | 3.0/10 |
| Light & reflections | 4.0/10 | 1.5/10 |
| Purposeful detail | 4.0/10 | 2.5/10 |
| Artistry & character | 4.0/10 | 1.5/10 |
| Materials & effects | 4.0/10 | 1.5/10 |
| Visual integrity | 5.5/10 | 2.5/10 |
A cycling pelican tests anatomy, riding posture and contact between the bird and the bicycle.